Costalampys bella sp. nov. Silveira, Roza, Vaz & Mermudes

da Silveira, Luiz Felipe Lima, Roza, Andre Silva, Vaz, Stephanie & Mermudes, Jose Ricardo M., 2021, Description and phylogenetic analysis of a new firefly genus from the Atlantic Rainforest, with five new species and new combinations (Coleoptera: Lampyridae: Lampyrinae), Arthropod Systematics & amp; Phylogeny 79, pp. 115-150 : 115

Costalampys bella sp. nov. Silveira, Roza, Vaz & Mermudes Figs 6A-M , 22

Diagnostic description.

Overall brown. Pronotal disc of variable color, from having paired pink spots to entirely pink (Fig. 6A, C, F ), pronotal expansions dark brown, often brighter at anterior corners. Elytron (Fig. 6A, C ) dark brown with a pale-yellow longitudinal stripe as long as about 4/5 × elytron length. Legs dark brown, except for trochanters, which are light brown. Sternum VIII with lateral vitreous spots. Pygidium brown (Fig. 6H ).

Pronotum (Fig. 6F ) with sides almost straight, mildly divergent posteriorly. Male. Total length = 8.4-8.8 mm (aver. 8.6 mm); Pronotal length = 1.8 mm; Pronotal width = 2.6-2.7 mm (aver. 2.65 mm); Elytral length = 6.0-6.6 mm (aver. 6.3 mm); Elytral width = 1.7-1.8 mm (aver. 1.75 mm). Antennomere III (Fig. 6E ) with lamella about 1.5 × longer than core antennomere. Sternum VI (Fig. 6B, G ) with a small lantern, occupying the medial 1/6 of sternum length, not reaching its anterior margin. Sternum VIII with posterior margin medially sinuose. Pygidium (Fig. 6H ) with sides rounded, posterior corners barely visible, posterior margin medially mucronate. Syntergite (Fig. 6I ) boomerang-shaped (with anterior margin strongly curved). Phallus with dorsal plate bent dorsally (lateral view), with sides rounded at apical half, slightly convergent apically. Paramere (Fig. 6K-M ) apex curved ventrally, ventral projection (lateral view) well developed, almost right-angled. Female (Fig. 6C, D ). Total length = 7.6 mm; Pronotal length = 1.5 mm; Pronotal width = 2.2 mm; Elytral length = 6.3 mm; Elytral width = 1.6 mm. Antennomeres III-X with apical corners almost right-angled, not projected, sterna VI and VII lacking lanterns.

Remarks.

Costalampys bella sp. nov. (Fig. 6A, B ) is similar to C. delicata sp. nov. (Fig. 11A, B ) C. joanae sp. nov. (Fig. 16A, B ), C. tricolor (Gorham, 1880) comb. nov. (Fig. 21A, B ), and C. decorata (Olivier, 1888) comb. nov. (Fig. 9A, B ), in the dorsal color pattern (overall brown or dark brown, with pronotal disc broadly pink, and with an elongate pale-yellow spot on elytron). C. bella sp. nov. is unique among the aforementioned species by the sides of pronotum almost straight in both sexes (rounded in the others), the lack of lanterns in females (present in the others), and antennomere III lamella 1.5 longer than core antennomere in males (as long as [ C. delicata sp. nov.], or 2 × [ C. tricolor (Gorham, 1880) comb. nov.], 2.5 × [ C. decorata (Olivier, 1888) comb. nov.] or 4 × longer [ C. joanae sp. nov.] than core antennomere in the others). Costalampys bella sp. nov. is most similar to C. tricolor (Gorham, 1880) comb. nov., but can be further distinguished from it by the male pygidium with posterior margin mucronate (rounded in C. tricolor (Gorham, 1880) comb. nov.).

Etymology.

Bella is a Latin adjective that means “beautiful”.

Types.

Holotype: BRAZIL: Rio de Janeiro: 1 ♂, Itatiaia, Itatiaia National Park, Malaise Pensario P2 (22°25 ’59,6” S, 44°37 ’39,7” W, 1280 m), 1♂, I.2014, R. Monteiro col. (DZRJ). Paratype: 2♂, same label as holotype, but XII.2014 (DZRJ). BRAZIL: São Paulo: 1♀, São Luiz do Paraitinga, Serra do Mar State Park, Núcleo Sta. Virgínia, Malaise trap, Ponto 1, 23°19 ’27.1” S, 45°05 ’38.4” W, 22.XI.2010, N.W. Perioto & eq. Col. (DZRJ).

Figures

Figure 6. Costalampys bella sp. nov. A, Male habitus, dorsal view; B, Male habitus, ventral view; C, Female habitus, dorsal view; D, Female habitus, ventral view; E, Male antena, lateral view; F, Male pronotum, dorsal view; G, Male terminal segments, ventral view; H, Pygidium, dorsal view; I, Syntergite, dorsal view; J, Sternum IX, Ventral view; K, Aedeagus, dorsal view; L, Aedeagus, lateral view; M, Aedeagus, ventral view. Scale bar: 2 mm (A-D); Scale bar: 1.0 mm (E; G); Scale bar: 0.5 mm (F; H-M).

Figure 9. Costalampys decorata (Olivier) comb. nov. A, Male habitus, dorsal view; B, Male habitus, ventral view; C, Female habitus, dorsal view; D, Female habitus, ventral view; E, Male antena, lateral view; F, Male pronotum, dorsal view; G, Male terminal segments, ventral view; H, Pygidium, dorsal view; I, Syntergite, dorsal view; J, Sternum IX, Ventral view; K, Aedeagus, dorsal view; L, Aedeagus, lateral view; M, Aedeagus, ventral view. Scale bar: 2 mm (A-D; G-H); Scale bar: 0.5 mm (I-M).

Figure 11. Costalampys delicata sp. nov. A, Male habitus, dorsal view; B, Male habitus, ventral view. Scale bar: 2 mm (A-B).

Figure 16. Costalampys joanae sp. nov. A, Male habitus, dorsal view; B, Male habitus, ventral view; C, Male antenna, lateral view; D, Male pronotum, dorsal view; E, Sternum IX, ventral view; F, Pygidium, dorsal view; G, Syntergite, dorsal view; H, Sternum IX, Ventral view; I, Aedeagus, dorsal view, blue arrow pointing to the transverse keel on the dorsal plate; J, Aedeagus, lateral view; K, Aedeagus, ventral view; L, Aedeagus, oblique view, red arrow pointing to the ventral plate. Scale bar: 2 mm (A-C); Scale bar: 1.0 mm (D-L).

Figure 21. Costalampys tricolor (Gorham) comb. nov. A, Male habitus, dorsal view; B, Male habitus, ventral view; C, Female habitus, dorsal view; D, Female habitus, ventral view; E, Male antenna, lateral view; F, Male pronotum, dorsal view; G, Sternum IX, ventral view; H, Pygidium, dorsal view; I, Syntergite, dorsal view; J, Sternum IX, Ventral view; K, Aedeagus, dorsal view; L, Aedeagus, lateral view; M, Aedeagus, ventral view. Scale bar: 2 mm (A-D); Scale bar: 1.0 mm (E; G); Scale bar: 0.5 mm (F; H-M).

Figure 22. Distribution map of Costalampys gen. nov. species.